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onsemi MC74VHC00MELG
- Part No.:
- MC74VHC00MELG
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC74VHC00MELG.pdf
- Description:
- IC GATE NAND 4CH 2-INP SOEIAJ-14
- Quantity:
- Payment:
- Shipping:
Inventory:2,011
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Product details
Overview
MC74VHC00MELG from onsemi is a high-speed CMOS quad 2-input NAND gate in SOIC-14 package, operating from 2.0 V to 5.5 V with typical propagation delay of 3.7 ns at 5.0 V and input tolerance up to 5.5 V. It delivers full 5.0 V CMOS-level output swings and supports level-shifting between 3.3 V and 5.0 V logic domains in industrial control and embedded interface circuits.
For engineers reviewing the MC74VHC00MELG datasheet, pinout, applications, or equivalent options, key selection criteria include its TTL-compatible input voltage margin (VIH = 1.5 V min at VCC = 2.0 V), low dynamic noise (VOLP ≤ 0.8 V), balanced tPLH/tPHL delay symmetry, and AEC-Q100–capable variants for automotive subsystems requiring robustness across –55 °C to +125 °C.
Technical Context
The MC74VHC00MELG implements four independent NAND gates using silicon-gate CMOS technology with three-stage internal circuitry including buffered outputs for enhanced noise immunity. Its input structures tolerate 5.5 V regardless of VCC, enabling safe interfacing between mixed-voltage systems.
It features power-down protection, latchup immunity exceeding 100 mA, and ESD robustness >2000 V HBM. The device lacks tri-state capability but provides stable rail-to-rail CMOS output swing under all valid supply and load conditions within recommended operating ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.0 V to 5.5 V - supports single-supply operation across 3.3 V and 5.0 V logic families without level translators |
| tPD (Typ) | 3.7 ns at VCC = 5.0 V, CL = 50 pF - enables reliable timing in sub-100 MHz digital control paths |
| VIH / VIL | 1.50 V / 0.50 V min/max at VCC = 2.0 V - ensures compatibility with legacy 3.3 V and 5.0 V CMOS drivers |
| VOH / VOL | ≥1.9 V / ≤0.1 V at VCC = 2.0 V, IOL = 50 µA - guarantees noise margin ≥0.4 V in low-voltage operation |
| Input Tolerance | –0.5 V to +5.5 V - allows hot-plug-safe connection to powered 5 V buses while VCC = 3.3 V or lower |
| ICC (Max) | 2.0 µA at TA = 25°C - enables ultra-low static power in battery-backed or always-on monitoring nodes |
| Operating Temp | –55 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and outdoor telecom applications |
Pinout & Package
MC74VHC00MELG is housed in a Pb-free SOIC-14 (Case 751A) package measuring 8.75 mm × 3.90 mm × 1.75 mm with standard 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot; pin 7 is GND and pin 14 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 12, 13 | NAND Input (A1/B1/A2/B2/A3/B3/A4/B4) | Dedicated inputs per gate; tolerant to 5.5 V regardless of VCC - enables mixed-voltage signal routing |
| 3, 6, 10, 11 | NAND Output (Y1/Y2/Y3/Y4) | CMOS push-pull outputs with rail-to-rail swing; drive ±8 mA at VCC = 4.5 V for fanout ≥10 |
| 7 | GND | Ground reference for all logic and power domains; must be low-impedance for noise immunity |
| 14 | VCC | Primary supply input; decoupling capacitor required within 10 mm for stable high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| High Noise Immunity | VNIH = VNIL = 28% of VCC - rejects transient coupling in noisy motor-control or relay-driver PCB environments |
| Low Dynamic Noise | VOLP ≤ 0.8 V at CL = 50 pF - minimizes ground bounce and crosstalk in dense logic arrays |
| Power-Down Protection | Inputs remain functional and non-damaging when VCC = 0 V - prevents latchup during partial power sequencing |
| Pb-Free & RoHS Compliant | Meets JESD204B, UL 94 V-0, and oxygen index ≥28 - suitable for consumer, industrial, and automotive end equipment |
| Chip Complexity | 32 FETs / 8 equivalent gates - optimized transistor count balances speed, area, and leakage for cost-sensitive designs |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Isolating and conditioning discrete sensor inputs (e.g., door switch, hood latch) before feeding into microcontroller GPIOs. IC Role / Device Role / Timing Role: Logic-level translation and signal inversion stage ensuring clean, debounced, and voltage-aligned signals to MCU inputs. Use Value: Enables direct interface of 5 V mechanical switches to 3.3 V microcontrollers without external resistors or translators - reducing BOM count and layout area. |
Use Scenario: Implementing enable/disable logic for LED driver ICs controlling interior lighting zones. IC Role / Device Role / Timing Role: Active-low enable gate that combines multiple vehicle state signals (ignition ON, door open, ambient light low) to activate lighting drivers. Use Value: Provides deterministic, glitch-free activation timing with <3.7 ns propagation delay - critical for synchronized multi-zone lighting sequences. |
| Medical Instrument Front Panel | Telecom Line Card Status Monitoring |
|
Use Scenario: Debouncing tactile button inputs and generating interrupt requests for patient-monitoring system UI processors. IC Role / Device Role / Timing Role: Synchronous NAND-based SR latch implementation for hardware-level switch synchronization and metastability suppression. Use Value: Delivers guaranteed setup/hold margins via balanced tPLH/tPHL delays - eliminating need for software debounce in safety-critical UI paths. |
Use Scenario: Monitoring multiple fault indicators (overvoltage, overtemperature, LOS) on a line card and asserting a consolidated alarm signal. IC Role / Device Role / Timing Role: Wired-OR logic aggregator combining four independent fault flags into a single active-low alarm bus. Use Value: Achieves fail-safe alarm assertion with <10 ns worst-case delay variation - meeting ITU-T G.703 jitter and response time requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad NAND gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC74VHCT00ADR2G | TTL-compatible inputs (VIH = 2.0 V min at VCC = 5.5 V); otherwise identical AC/DC specs and SOIC-14 footprint | Required where driving from legacy 5 V TTL sources (e.g., 74LS series) without pull-up resistors | Select when interfacing with older 5 V logic families; not drop-in for pure CMOS source systems |
| SN74LVC00APWR | Lower VCC range (1.65–5.5 V); faster tPD = 3.0 ns typ at 3.3 V; different pinout (Y1–Y4 on pins 3,4,10,11 vs. MC74VHC00MELG's 3,6,10,11) | Better suited for 1.8 V/2.5 V mixed-signal SoC interfaces; requires PCB redesign due to pin mismatch | Choose for new designs targeting 1.8 V core logic; not pin-compatible - avoid for drop-in replacement |
Compared with MC74VHC00MELG, MC74VHCT00ADR2G offers guaranteed TTL input compatibility at no layout cost, while SN74LVC00APWR delivers superior speed at 3.3 V but mandates board revision due to non-identical pin mapping and output drive asymmetry.
Availability
MC74VHC00MELG is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and medical instrument front panels requiring stable component supply across extended temperature and long product lifecycles.
Supply support for MC74VHC00MELG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74VHC00MELG belongs to onsemi's VHC logic family, engineered for high-speed, low-power CMOS operation in mixed-voltage embedded systems where reliability across –55 °C to +125 °C is mandatory.
FAQ
What is the maximum input voltage rating for MC74VHC00MELG?
The MC74VHC00MELG supports DC input voltages from –0.5 V to +5.5 V, independent of VCC level. This allows safe interfacing with 5 V signal sources even when operating from a 3.3 V or 2.5 V supply - a key feature for voltage-level translation without external components. This rating is confirmed in the Maximum Ratings table on page 2 of the official datasheet.
Does MC74VHC00MELG support tri-state outputs?
No, MC74VHC00MELG does not provide tri-state outputs. It is a standard quad 2-input NAND gate with push-pull CMOS outputs only. The datasheet contains no tri-state control pin, no "Z" state in the function table, and no tristate-mode specifications in the electrical characteristics - confirming purely combinational, non-bus-oriented operation.
Can MC74VHC00MELG operate reliably at 2.0 V supply?
Yes, MC74VHC00MELG is fully specified down to VCC = 2.0 V, with guaranteed VIH = 1.50 V min and VIL = 0.50 V max at that voltage. Propagation delay increases to 11.4 ns (max) at CL = 50 pF, and output drive remains functional at ±4 mA - making it suitable for ultra-low-power portable and battery-operated systems where 2.0 V operation is required.
Is MC74VHC00MELG pin-compatible with 74HC00 devices?
Yes, MC74VHC00MELG is pin- and function-compatible with industry-standard 74HC00 devices in SOIC-14 packaging. Pin assignments (inputs A1–B4, outputs Y1–Y4, VCC, GND) match exactly, and logic behavior is identical. However, MC74VHC00MELG offers improved speed (3.7 ns vs. ~8 ns typical) and wider VCC range (2.0–5.5 V vs. 2.0–6.0 V), with identical 1.27 mm pitch and footprint.
What is the thermal resistance (θJA) of MC74VHC00MELG in SOIC-14 package?
The junction-to-ambient thermal resistance (θJA) for MC74VHC00MELG in SOIC-14 (Case 751A) is 116 °C/W, measured on a standard FR4 board with minimum pad spacing and no airflow (per JESD51-7). This value is critical for calculating maximum allowable power dissipation in thermally constrained enclosures - for example, at 25 °C ambient, max continuous PD ≈ 1077 mW before exceeding 150 °C junction limit.
MC74VHC00MELG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NAND Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V
- Input Logic Level - High:
- 1.5V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOEIAJ-14
MC74VHC00MELG FAQ
1.How can I place an order for MC74VHC00MELG through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74VHC00MELG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC74VHC00MELG reliable?
The price and inventory of MC74VHC00MELG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74VHC00MELG is usually 5 days.
3.What payment methods are accepted for MC74VHC00MELG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74VHC00MELG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74VHC00MELG?
MC74VHC00MELG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74VHC00MELG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC74VHC00MELG?
For technical support, including MC74VHC00MELG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74VHC00MELG requirements.
6.How does Aetrix verify that MC74VHC00MELG is sourced from the original manufacturer or authorized distributors?
All MC74VHC00MELG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC74VHC00MELG meets industry standards.
7.What is the process for return or replacement of MC74VHC00MELG?
All MC74VHC00MELG units undergo pre-shipment inspection (PSI). If there is an issue with MC74VHC00MELG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC74VHC00MELG part is unused and in its original packaging.
Return procedure for MC74VHC00MELG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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